Prayer - Does every prayer have a specific supplication?

Question : May Allah bless you. The questioner from the Sultanate of Oman says in this question: Does every prayer have a specific supplication? I ask you to provide information on my question.

Answer : The prayer is one; what was prescribed in one prayer was prescribed in the other. For example, all of them require the takbir of ihram, reciting al-Fatihah, bowing, rising from it, prostrating twice, sitting between the two prostrations, and tranquility in the actions. However, some have a specific supplication. For example, the witr prayer: the qunut is specific to the witr. One does not perform qunut in other prayers unless a calamity befalls the Muslims, in which case qunut is performed in the obligatory prayers. Likewise, the prayer of istikharah: one supplicates after the taslim with the known supplication of istikharah. By this, we know that the hadith regarding the prayer of tasbih narrated from the Prophet (peace and blessings be upon him) is not authentic from the Messenger of Allah (peace and blessings be upon him), as mentioned by Shaykh al-Islam Ibn Taymiyyah. May Allah reward you, Honorable Shaykh, and may Allah bless you and your knowledge, and benefit the Muslims through you.