What is the ruling on saying: "O Allah, grant me something like so-and-so's something," such as: "O Allah, grant me faith like the faith of Abu Bakr"? And what is the ruling on completing the verse: (And there is none comparable to Him) in rukoo’ (bowing) or while on the way to it, as well as saying: "Subhan Rabbi al-Atheem" (Glory be to my Lord, the Most Great) for the third time after rising from rukoo’?

If what is asked for is something Allah loves, such as faith and righteous deeds, then supplicating for it is recommended, as it falls under the general category of competing in good deeds. Allah loves noble matters, and texts have indicated the permissibility of asking for high ranks, even if they are greater than the petitioner.

As for the prescribed dhikr while descending for ruku' (bowing), it is takbir (saying "Allahu Akbar"). Tasbih (glorification) is said during ruku', and then upon rising, one says: "Sami' Allahu liman hamidah" (Allah hears those who praise Him). Reciting or glorifying in a place other than its prescribed one is contrary to what is legislated. If it leads to abandoning the prescribed dhikr in its proper place, then the prayer may be invalidated according to some scholars. If one continues reciting in ruku', it is forbidden, but it does not invalidate the prayer.