Is the du’aa’ of Witr obligatory, and what should a person say if he cannot memorize it?

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Recitation in Taraweeh prayer
Ruling on only reciting Soorat al-Ikhlaas in tahajjud prayers, and repeating it a specific number of times in each rak‘ah

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Related Answers:
It is permissible for one who is suffering from waswaas in prayer to lead women in praying taraaweeh
He followed his imam in Taraweeh to pray ‘Isha’, then he followed him again for the last two rak’ahs
There is no sound report to indicate that in Ramadan the Prophet (blessings and peace of Allah be upon him) prayed twenty rak‘ahs, even though that is permissible
Recitation in Taraweeh prayer
Ruling on only reciting Soorat al-Ikhlaas in tahajjud prayers, and repeating it a specific number of times in each rak‘ah

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