How sound is what is stated in the book "Tanbih al-Ghafilin fi al-Maw'izah fi Ahadith Sayyid al-Anbiya' wa al-Mursalin" and how safe is the creed of its author, Abu al-Layth Nasr ibn Muhammad ibn Ibrahim al-Samarqandi al-Hanafi?

The book "Tanbih al-Ghafilin" by Abu al-Layth al-Samarqandi, despite the eminence of its author, is full of fabricated and forged hadiths attributed to the Prophet, peace and blessings be upon him, as mentioned by al-Dhahabi. Therefore, one should suffice with accredited السنة books and reliable books of raqa'iq (heart-softeners) such as "Riyadh as-Salihin" by an-Nawawi and "at-Targhib wa at-Tarhib" by al-Mundhiri.