This is problematic as he must not bow without the imam. It seems if he bends his knees while his back is still straight that this might be acceptable.

If a person absentmindedly keeps his mobile on the prayermat and suddenly in salah in the masjid ,the phone starts ringing (he often forgets to put it on silent mode) can he bend ,pick the phone and put it on silent while in salah in the masjid so that others do not get disturbed while praying .

Prayer |