Answer
(Fatwa: 400/372/N=1433)
It is quite nonsense and false. There are lots of Sahih and Hasan Hadith in Fazail Amal and some weak hadith as well which as per the rules of Muhaddithin are reliable in the chapter of Targhib and Tarhib. It does not contain such weak hadith which are totally null and unauthentic. If you study the booklet ‘Fazail Amal Par Etirazat, Ek Usuli Jaizah’ by Hadhrat Maulana Mufti Abdullah Maroofi, Teacher Takhassus Fil Hadith, Darul Uloom Deoband, then it shall be far better for you. This booklet is available on the website of Darul Uloom Deoband. You can download it from there.
Allah (Subhana Wa Ta’ala) knows Best
Darul Ifta,
Darul Uloom Deoband