It is narrated from Sayyiduna ‘Amir bin Rabi‘ah (may Allah be pleased with him), he says:“I have seen the Messenger of Allah (peace and blessings be upon him) using the miswak while fasting countless and innumerable times.”

It is narrated from Sayyiduna Abdullah bin Abbas (may Allah be pleased with them both), he says: Two men came to the Noble Prophet (peace and blessings be upon him), both had a similar need. When one of them spoke, the Prophet (peace and blessings be upon him) noticed an unpleasant odor from his mouth and asked him: "Do you not use the miswak?" He replied: "Yes, I certainly do, but the real matter is that I have not eaten food for three days." Then the Prophet (peace and blessings be upon him) instructed a man, so he gave him a place and fulfilled his need.