Practice what you have learned

Abu Qilyaba, a great imam from among the Tabi’in, who found ten companions, said:
“ If Allah has awarded you with some knowledge, then dedicate to Him worship based on this knowledge. And let it not be your main desire – only the transfer of this knowledge to people! 
See” al-Ma’rifa wa-ttarih “(3/66)

Hammam ibn Yahya – the teacher of Sufyan al-Thawri and Ibn al-Mubarak, said:
“Truly, I am ashamed of Allah in reading the Book of Allah and memorizing hadith just to tell people about it”.
See al-Siyar (7/299).

Hafiz al-Khatib al-Baghdadi said: “The intention of the student of hadith should not be to achieve headship, gain followers or organize meetings, for these are the main troubles that befall the owners of knowledge. However, let him study the hadith as its keeper, and not as its transmitter, because there are many transmitters of knowledge, but few store them. Often the present is like the absent, and the scientist is like the ignorant.

Likewise, a person transmitting a hadith may not have the slightest relation to him, for by not fulfilling the decrees contained in the hadith, he becomes like a person who has lost his knowledge and ability to cognize. And let him know that Allah Almighty will ask him for the knowledge for which he acquired it, and will reward him in accordance with how he used it ”.
See “al-Jami ‘li ahlak ar-raui” (1/126).

How wonderful these instructions are!
And how many in our time there are such “transmitters” of knowledge who learn something first of all not for themselves, and not in order to hasten to put it into practice, but in order to quickly expose it in some groups on social networks, make a newsletter, thereby promote some kind of channel and get more likes.

Imam Ibn ‘Abdu’l-Barr said: “Some sages said: “May Allah make knowledge useful for us and for you, and may Allah not make only hearing and wondering our part of knowledge. “
See “Jami’u bayan al-‘ilm” (1/707)