´It was narrated that Mus'ab bin Sa'd said:` "I bowed and put my hands together, and my father said: 'This is something that we used to do, then we brought them up to our knees.'"
Mus'ab bin Sa'd reported: 'Abdullah son of Umar came to Ibn'Amir in order to inquire after his health as he was ailing. He said Ibn 'Umar, why don't you pray to Allah for me? He said: I heard of Allah's Messenger (ﷺ) say: Neither the prayer is accepted without purification nor is charity accepted out of the ill-gotten (wealth), and thou wert the (governor) of Basrah.
Shaykh Maulana Abdul Aziz Alvi
Hadith Commentary: Vocabulary of the Hadith: Ghulool: Originally, this refers to betrayal in war booty (ghanimah), then its usage was extended to every kind of betrayal.
Benefits and Issues: Abdullah ibn Umar (radi Allahu anhu) said to Ibn Amir, as a form of reprimand and admonition: You have been the governor of Basrah, and a ruler is liable to fall short in fulfilling the rights of Allah and the rights of the people, and there can also be negligence regarding the public treasury (bayt al-mal). Therefore, for such a person, the acceptance of supplication (du'a) becomes difficult. Thus, you should repent and seek forgiveness (tawbah wa istighfar) and strive to make amends for any usurpation of rights, so that your supplication may be accepted.
Source: Tuhfat al-Muslim: Commentary on Sahih Muslim, Page: 535
´It was narrated that Mus’ab bin Sa’d said:` “I bowed (in prayer) beside my father, and I put my hands between my knees. He struck my hand and said: ‘We used to do that, then we were commanded to put them on the knees.’”
Maulana Ataullah Sajid
Benefits and Issues: ➊ The meaning of "tatbeeq" is that both hands are joined together, interlacing the fingers, and then the hands are placed between the thighs. This method of bowing (ruku‘) has been abrogated.
➋ It is not permissible to act upon a ruling that has been abrogated.
➌ The correct method of bowing (ruku‘) is that the hands should be placed on the knees in such a way as to grasp the knees. See: (Jami‘ at-Tirmidhi, The Book of Prayer, Chapter: What has been related about separating the hands from the sides in bowing, Hadith: 260)
Source: Commentary on Sunan Ibn Mājah by Mawlānā ‘Atā’ullāh Sājid, Page: 873