Musannaf Ibn Abi Shaybah 33392 — Their disagreement over the matter

Sa'id said: Sayyiduna Umar (may Allah be pleased with him) wrote something on a shoulder bone concerning the grandfather and kalalah, then began to seek guidance from Allah Almighty through istikharah. When he was wounded, he sent for that bone and erased it, then said: I had written something concerning the grandfather and kalalah; now my view is that I should leave you in your existing state. So the people could not learn what he had written on the shoulder bone.