Reference: al-Imaam Ibn Baaz – duroos wa mawaaqif wa ‘ibar – Page 125
Shaykh ‘Abdul-’Azeez as-Sad.haan narrates:
I once asked him in a lesson [on Thursday]: “O Shaykh, the hadeeth which al-Haafidh mentions in Buloogh al-Maraam is:
«نِعْمُ الأَجْر يُؤْخَذُ عَلَى القُرْآن»
«The best of payments is received from (transcribing and teaching) the Qur.aan»
…and I paused, and he said:
“This [hadeeth] is not in Buloogh [al-Maraam].”
So I replied: “O Shaykh, I read it in Buloogh [al-Maraam].”
So he began to think, and then said: “This [hadeeth] is not in Buloogh [al-Maraam].”
At this, one of the brothers indicated to me that the Shaykh was adamant.
So I went on: “O Shaykh, I have read it.”
He said: “Bring it (Buloogh al-Maraam) with you tomorrow.”
So I began to turn over the pages of Buloogh [al-Maraam], page by page, but did not come across it. After some time had passed, I would guess it was about 4 to 5 months, I found the hadeeth in Buloogh [al-Maraam], so I went to the Shaykh and said: “O Shaykh, may Allaah improve your affairs, I asked you about a hadeeth, and mentioned to you that it was in Buloogh [al-Maraam] and you denied it and I have it with me now.”
So he said: “Read.”
So I said: “On the authority of Abu Sa’eed al-Khudree (radhi-yallaahu ‘anhu), who said: The Messenger of Allaah ﷺ said:
«إِنَّ أَحَقَّ مَا أَخَذْتُمْ عَلَيْهِ أَجْراً كِتَاب اللهِ»
«The most worthy thing for which you receive payment is Allaah’s Book»
He said: “Yes, however, you asked about the [hadeeth whose] wording [was]:
«نِعْمُ الأَجْر يُؤْخَذُ عَلَى القُرْآن»
«The best of payments is received from (transcribing and teaching) the Qur.aan»
…as for this hadeeth, then it is in [Saheeh] al-Bukhaaree.”