Can I make a one-time intention that the Sawaab of all and any Nafl acts I do or going to do in my life goes to the rooh of Muhammad Rasoolullah [saws], all of the Sahaba Ikram, all of the Awliyah, and all of Muslims who have passed away and still alive, and especially to the rooh of my grandparents, aunts, uncles etc. or do I have to make that intention each and every time I do a Nafl act? (U.S.A)
prayer then he should make a prayer for all the people so that they can get reward.