Hadith.5015 - Ali ibn Abi Hamzah narrated from Abu Basir from Abu Jafar Imam Muhammad ibn Ali Al-Baqir (as) who said
I asked Imam (as) about a man who commits adultery multiple times in a single day.
Imam (as) replied: "If he commits adultery with the same woman multiple times, then only one punishment (hadd) applies to him. However, if he commits adultery with different women in the same day or even in the same hour, then for each woman he has violated, a separate punishment (hadd) applies."