Musannaf Ibn Abi Shaybah 12062 — Supplicating for the deceased after

Umayr bin Sa'id said: Sayyiduna Ali (may Allah be pleased with him) led the funeral prayer of Yazid and said four takbirs, then recited this supplication: 'Allahumma 'abduka wa ibnu 'abdika nazala bika al-yawm, wa anta khayru manzulin bihi, Allahumma wassi' lahu mudkhalahu, waghfir lahu dhanbahu, fa-inna la na'lamu illa khayran wa anta a'lamu bihi' (O Allah! Your servant and the son of Your servant has come to You today, and You are the best one to whom anyone comes. O Allah, make his grave spacious for him and forgive his sins; we know nothing of him but good, and You know him better).