Answer:
(Fatwa: 303/305=LM)
The money you are getting is against work, if you are not working in those extra times then you are not entitled to receive the payment for the same:
قال فی الدر المختار: ولیس للخاص أن یعمل لغیرہ، ولو عمل نقص من أجرتہ بقدر ما عمل (الدر المختار مع الشامی: 9/96)
Allah (Subhana Wa Ta’ala) knows Best
Darul Ifta,
Darul Uloom Deoband
