Majma al-Zawaid — Hadith 18549

Sayyiduna Anas (may Allah be pleased with him) narrates this saying of the Prophet (peace and blessings be upon him): "Two men were passing through a wilderness; one of them was a worshipper and the other was a sinner. The worshipper felt such severe thirst that he collapsed. His companion looked at him; the companion had a water-skin with some water in it, and he kept looking at him as he lay fallen. He thought: 'By Allah, if this righteous man dies of thirst while I have water, I will never receive any good from Allah Almighty; but if I give him my water to drink, I will die.' He put his trust in Allah Almighty, made a firm resolve, sprinkled some of his water on him (the worshipper) and gave him the rest to drink. The worshipper stood up and crossed the wilderness. The Prophet (peace and blessings be upon him) said: On the Day of Resurrection that sinner will be made to stand for the reckoning, and then he will be ordered to be taken to Hell. The angels will set off with him. He will see the worshipper and say: 'O so-and-so, do you recognise me?' He will ask: 'Who are you?' He will reply: 'I am so-and-so, who preferred you over myself on the occasion of crossing the wilderness.' He will say: 'Yes, I have recognised you.' Then he will say to the angels: 'Wait!' And he will stop there. He (the worshipper) will come, stand and begin to supplicate to his Lord, saying: 'O my Lord, You know the favour he did me and how he preferred me over himself. O my Lord, grant him to me!' The Lord will say: 'He is yours!' The Prophet (peace and blessings be upon him) said: Then the worshipper will come, take that man by the hand and admit him into Paradise.
Abu Ya'la recorded it, and its narrators are the narrators of the Sahih, except Abu Zilal al-Qasmali; Ibn Hibban and others declared him trustworthy, and more than one scholar declared him da'if (weak).