On the day of judgment a man will be presented with both his good and bad deeds equal to each other and he would not find any virtuous deed which will entitle him to paradise then Allah Almighty Will show His special Mercy. Allah will ask him to go and borrow any virtuous act from anyone. He will be wandering around and will try seeking a single virtuous deed but whoever he would ask, he will find no one lending him any virtuous deed as they may themselves be fearful of a deficit in their own. He will have utter disappointment when he will be asked by a person about this worry. He would reply that he needed just one virtuous deed and he had tried so many people around there but no one was willing for that. Then that person would say that when he met the Almighty he found just one virtuous deed in his book and he thought that it may be worthless for him against the heaps of his sins so he would give it away to the asking person. That person would be very happy and will get back to Allah Almighty to show him that he had sufficient virtuous deeds to be entitled for the paradise. Allah (All-knowing) will ask him where he got it from. He would tell Allah how he had got it. Then Allah will call for the person who had donated that virtuous deed and will ask him if he was more generous than Him. So both of them will be ordained to hold each other’s hand and enter into paradise (Al-Tazkirah, Vol 1, page 310, Al-Zarqani vol 12 page 360)