What is the ruling on saying "Allahu Akbar" for the prostration of forgetfulness after the salutation while rising from the first prostration and while descending for the second, with the first "Allahu Akbar" being said only before descending for the first prostration, and what is the ruling on prayers performed in this manner?

If a worshiper prostrates for forgetfulness (sujud al-sahw) after the tasleem, it is prescribed for him to say "Allahu Akbar" when moving down to prostrate, then rise while saying "Allahu Akbar", then prostrate again while saying "Allahu Akbar", then rise while saying "Allahu Akbar", then perform the tasleem. The most correct view is that the beginning of the takbir (saying "Allahu Akbar") should coincide with the beginning of the movement, not before or after it, based on the hadith of Abu Hurairah (may Allah be pleased with him). Some jurists have been strict regarding this, but the preponderant view is that the prayer remains valid even if some of the takbir occurs outside its proper place due to difficulty and hardship. Forgetting the prostration of forgetfulness before the tasleem and performing it after the tasleem is permissible, and the prayer is valid.