The Book of Divine Unity · Hadith 544 (#Ḥadīth #4)

4 - وبهذا الإسناد، عن الحسن بن محبوب، عن علي بن رئاب، عن بريد العجلي، قال: قال أبو عبد الله عليه السلام: خرج رسول الله صلى الله عليه وآله وسلم على أصحابه فقال: ما جمعكم؟ قالوا: اجتمعنا نذكر ربنا ونتفكر في عظمته، فقال: لن تدركوا التفكر في عظمته.

4. And with the same chain of transmission, on the authority of al-Hasan ibn Mahbub, on the authority of `Ali ibn Ri’ab on the authority of Burayd al-`Ijli that Abu `Abd Allah al-Sadiq ﷺ said: The Messenger of Allah joined a gathering of his companions, and asked them: “Why have you gathered?” They replied: “We have gathered to mention our Lord and to ponder upon His Greatness.” Thus, the Prophet ﷺ said; “You will never be able to understand His Greatness.”

Gradings are classical jarḥ-wa-taʿdīl, name-matched to a rijāl index (not individually re-verified).