This scene is from the 1950 Egyptian comedy film ‘Al Battal’ (‘The Champion’ or ‘The Hero’ البطل). The film starred Egyptian comedian Ismail Yassin along with Shadia and Zeinat Sedki. This scene is set in a nightclub where Toha the bellydancer, played by Taheya Karioka, performs.
Trivia: The elderly man in the audience wearing the fez and enjoying the performance greatly is Egyptian character actor Mohamed Kamal Elmasry (1886-1966).