Hadith record

7. A number of our people have narrated from Ahmad ibn Muhammad ibn Khalid from ibn Mahbub from Hisham ibn Salim from those whom has mentioned (in his book) from Abu ‘Abdillah (a.s.) who has said the following: “If a believer commits forty major sins within one day and night and then regretfully says, ‘I plead before Allah, besides Whom no one deserves to be worshipped, the living, the controlling power (over creation) the inventor of the heavens and earth, possessor of glory, and honor. I ask Him to grant favors upon Muhammad and his family and to forgive me and accept my repentance. Allah, the Most Majestic, the Most Holy, will forgive all of them, however, there is no good in one who commits more than forty major sins in a day.’”

Translation: Muhammad Sarwar·Thaqalayn link·The Arabic above is the original.