Musannaf Ibn Abi Shaybah 12412 — The punishment of the grave and what

Sayyiduna Abd al-Rahman bin Hasanah (may Allah be pleased with him) said: Sayyiduna Amr bin al-As (may Allah be pleased with him) and I were sitting when the Prophet (peace and blessings be upon him) came out to us. He (peace and blessings be upon him) had with him a leather shield or something like it; he (peace and blessings be upon him) screened himself with it and urinated while sitting. We said: "O Messenger of Allah, you urinate (sitting) the way a woman does!" He (peace and blessings be upon him) came to us and said: "Do you not know what befell the man of Banu Isra'il? When a drop of urine fell on the clothes of any of them, he would cut it off with shears. He forbade them from that, so he was punished in his grave."