Musannaf Ibn Abi Shaybah 33604 — Two men who have intercourse

Al-Sha'bi said: Sayyiduna Ali (may Allah be pleased with him) ruled, concerning two men who had intercourse with a woman in one period of purity and she bore a child, that this child should be shared between the two of them, in that the child will inherit from both of them and both of them will inherit from the child, and he will go to whichever of the two lives longer.