In principle, a person shall be considered in the state of Wudhu until he
has full conviction that this Wudhu did not break. (al-Ashbah)
Nabi (Sallallaahu Alayhi Wasallam) said, ‘If a person is confused to whether
his Wudhu broke or not, then he should leave the Musjid until he is sure
that his Wudhu broke.’ (Mishkaat pg.40; Qadeemi)
and Allah Ta’ala Knows Best
Mufti Ebrahim Desai