What is the ruling on the imam interrupting the prayer due to a long and intermittent ringing of a mobile phone, and is it permissible for someone whose phone rings during prayer to turn it off and complete his prayer?

Worshippers are not permitted to interrupt their prayers if the Imam interrupts his prayer. Rather, they must complete their prayer individually or by having one of them step forward to lead them in completing the prayer. It is permissible to turn off a phone during prayer if the action is minor and does not affect the validity of the prayer. However, a worshipper must turn off or silence their phone before prayer to avoid disturbing themselves and others, especially if the phone's ringtone is music, which increases the sin.