Mukhtasar Bukhari (Abridged) 965 — Fasting at the end of the month

Narrated by Sayyiduna Imran bin Husain (may Allah be pleased with him): The Prophet (peace and blessings of Allah be upon him) asked a man, "O father of so-and-so! Did you not fast at the end of this month?" He replied, "No, O Messenger of Allah!" The Prophet (peace and blessings of Allah be upon him) said, "When you have finished the (Ramadan) fasts, then make up those fasts." In another narration, the Prophet (peace and blessings of Allah be upon him) said, "Did you not fast two days at the end of Sha'ban?"