بسم الله الرحمن الرحيم
(Fatwa: 1148/1148=M/1430)
You should keep patience and turn to Allah. If you suspect someone of theft for valid reasons, you can enquire according to Shariah, but you should not suspect someone unnecessarily. Pray to Allah after salah and recite Ya Mu?eez (یا معیذ), if Allah wills, you will get it back.
Allah knows Best!
Darul Ifta,
Darul Uloom Deoband
