Kindly refer to the following links:


https://www.assimalhakeem.net/after-performing-ruku-while-standing-am-i-to-fold-my-hands-to-my-chest-or-should-i-keep-them-straight-down/


https://www.assimalhakeem.net/growing-up-i-was-told-to-pray-without-raising-my-hands-before-ruku-and-after-ruku-now-as-im-older-i-see-many-people-who-follow-the-salaf-do-this-is-it-fard-to-raise-your-hands-before-and-after-ru/


Where to place the hands in salah while standing?


Where to put my hands in salah? (chest or belly)


Where to place the hands after raising up from ruku, on your chest or to your sides?