Musannaf Ibn Abi Shaybah 38954 — Announcing lost property: Abu Hanifah

It is narrated from Sayyiduna Abu Sa'id (may Allah be pleased with him) that the Prophet (peace and blessings be upon him) forbade selling fruits before their ripeness becomes evident. The people asked: "What is the evident ripeness of fruits?" He said: "That the blights of the fruits are gone and the good fruit has come clear." (That is, the customary time of blights has passed and the time of safety has begun.)