Anas b. Malik reported Allah's Apostle (may peace be upon him) having said: When the servant is placed in his grave and his companions retrace their steps arid he hears the noise of the footsteps, then two angels come to him and make him sit and say to him: What you have to say about this person (the Holy Prophet)? If he is d believer, lie would say: I bear testimony to the fact that he is a servant of Allah and His Messenger. Then it would be said to him: Look to your seat in the Hell- Fire, for Allah has substituted (the seat of yours) with a seat in Paradise. Allah's Messenger (may peace be upon him) said: He would be shown both the seats. Qatada said: It was mentioned to us that his grave (the grave of a believer) expands to seventy cubits and is full with verdure until the Day when they would be resurrected. Sahih Muslim (7395)   
'Abdullah b. 'Abbas reported: Umar b. Khattab set out for Syria. As he came at Sargh (a town by the side of Hijaz on the way to Syria), there met him the commander of the forces, Abu Ubaida b. Jandb, and his companions. They informed him that a scourge had broken out in Syria. Ibn 'Abbas further reported that 'Umar said: Call to me tile earliest emigrants. So I called them. He (Hadrat 'Umar) sought their advice, and they told him that the scourge had broker, out in Syria. There was a difference of opinion (whether they should proceed further or go back to their homes in such a situation). Some of them said: You ('Umar) have set forth for a task, and, therefore, we would not advise you to go back, whereas some of them said: You have along with you the remnants (of the sacred galaxy) of men and (the blessed) Companions of Allah's Messenger (may peace be upon him), so we would not advise you to go forth towards this calamity (with such eminent persons and thus expose them deliberately to a danger). He (Hadrat 'Umar) said: You can now go away. He said: Call to me the Ansar. So I called them to him, and he consulted them, and they trod the same path as was trodden by the Muhajirin, and they differed in their opinions as they had differed. He said: Now, you can go. He again said: Call to me the old persons of the Quraish who had migrated before the Victory (that is the Victory of Mecca), so I called them (and Hadrat 'Umar consulted them) and not even two persons differed (from the opinion held by the earlier delegates). They said: Our opinion is that you better go back along with the people and do not make them go to this scourge, So 'Umar made announcement to the people: In the morning I would be on the back of my side. So they (set forth in the morning), whereupon Abu 'Ubaida b. Jarrah said: Are you going to run away from the Divine Decree? Thereupon 'Umar said: Had it been someone else to say this besides you! 'Umar (in fact) did not approve of his opposing (this decision) and he said: Yes, we are running from the Divine Decree (to the) Divine Decree. You should think if there had been camels for you and you happened to get down in a valley having two sides, one of them covered with verdure and the other being barren, would you not (be doing) according to the Divine Decree if you graze them in verdure? And in case you graze them in the barren land (even then you would be grazing them) according to the Divine Decree. There happened to come 'Abd al-Rahman b. 'Auf and he had been absent in connection with some of his needs. He said: I have with me a knowledge of it, that I heard Allah's Messenger (may peace be upon him) as saying: If you hear of its presence (the presence of plague) in a land, don't enter it, but if it spreads in the land where you are, don't fly from it. Thereupon 'Umar b. Khattab praised Allah and then went back? Sahih Muslim (5915)   
Qais b. 'Ubada reported: I was in the company of some persons, amongst whom some were the Companions of Allah's Apostle (may peace be upon him) in Medina, that there came a person whose face depicted the fear (of Allah). Some people said: He is a person from amongst the people of Paradise; he is a person from amongst the people of Paradise. He observed two short rak'ahs of prayer and then went out. I followed him and he got into his house and I also got in and we began to converse with each other. And when he became familiar (with me) I said to Him: When you entered (the mosque) before (your entrance in the house) a person said so and so (that you are amongst the people of Paradise), whereupon he said: It is not meet for anyone to say anything which he does not know. I shall (now) tell you why they (say) this. I saw a dream during the lifetime of Allah's Messenger (may peace be upon him) and narrated it to him. I seemed to be in a garden [he described its vastness, its rich fructification and its verdure]; in the midst of it, there stood an iron pillar, with its base in the earth and its summit in the sky: and upon its summit there was a handhold. It was said to me: Climb up this (pillar). I said to him (visitant in the dream): I am unable to do it. Thereupon a helper came to me, and he (supported) me (by catching hold of my) garment from behind and thus helped me with his hand and so I climbed up till I was at the summit of the pillar, and grasped the handhold. It was said to me: Ho d it tightly. It was at this that I woke up when (the handhold) was in fthe grip) of my hand. I narrated it (the dream) to Allah's Apostle (may peace be upon him), whereupon he said: That garden implies al-Islam and that pillar implies the pillar of Islam. And that handhold is the firmest faith (as refered to in the Qur'an). And you will remain attached to Islam until you shall die. And that man was 'Abdullah b. Salim. Sahih Muslim (6536)