Is it true that the book "Fada'il al-A'mal" by Muhammad Zakariyya al-Kandahlawi contains many matters that are considered shirk?

What is mentioned in the book "Fada'il al-A'mal" (Virtues of Deeds) consists of superstitions and innovations that have no basis in Islamic Law, nor any origin in the Quran or Sunnah. The claims of the existence of the Messenger's hair and its richness, and seeing the Prophet recommending supplication at the grave, are lies and fabrications.

The belief that the ascetic worshipper does not die but rather transitions and fulfills people's needs in his grave is a corrupt belief stemming from the deviant Sufi doctrines. And seeking the fulfillment of needs from the dead is major shirk (polytheism).

Scholars have unanimously warned against the book "Tableeghi Nisab" or "Fada'il al-A'mal" due to the superstitions and lies it contains.