كتاب العلم
12  
The Book of Knowledge
(241)
Chapter: Virtues of Knowledge which is Learnt and Taught for the sake of Allah
(241)
- باب فضل العلم تعلما وتعليما لله
Riyad as-Salihin 1379
Sahl bin Sa'd (May Allah be pleased with him) reported:
The Prophet (ﷺ) said to 'Ali (May Allah be pleased with him), "By Allah, if a single person is guided by Allah through you, it will be better for you than a whole lot of red camels."

[Al-Bukhari and Muslim].

وعن سهل بن سعد رضي الله عنه أن النبي صلى الله عليه وسلم قال لعلي رضي الله عنه ‏:‏ ‏ "‏فوالله لأن يهدي الله بك رجلا واحدا خير من حمر النعم‏"‏ ‏(‏‏(‏متفق عليه‏)‏‏)‏
Reference : Riyad as-Salihin 1379
In-book reference : Book 12, Hadith 4