Is a breastfeeding mother permitted to fast the month of Ramadan? How is the Witr prayer performed, what Surahs of the Qur’an are recited in it, and does it have a special supplication?

A nursing mother must fast Ramadan unless she fears harm for herself or her child. The Prophet, peace and blessings be upon him, used to pray Witr with "Glorify the name of your Lord, the Most High," "Say: O disbelievers," and "Say: He is Allah, the One." After finishing, he would say, "Glory be to the Sovereign, the Most Holy," three times.