"[The observance of certain Hindu customs by Muslim women filled Sirhindi with grief. He observed,] “There would hardly be any women who does not perform one or the other ceremony of Shirk (polytheism) ... Showing respect to the sacred days of Hindus and performing the ceremonies prevalent amongst them are nothing but kufr. For instance, during the Dewali of the kafirs, the ignorant ones amongst Muslims, particularly women, perform the ceremonies of kufr. They celebrate it like their own Jd and send presents to their daughters and sisters like the hafirs and Mushriks ... They attach much importance and weight to this season. All this is Shirk and kufr’."
January 1, 1970
https://en.wikiquote.org/wiki/Ahmad_Sirhindi