Hadith 942
أَخْبَرَنَا قُتَيْبَةُ، عَنْ مَالِكٍ، عَنْ نَافِعٍ، عَنِ ابْنِ عُمَرَ، أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم قَالَ " مَثَلُ صَاحِبِ الْقُرْآنِ كَمَثَلِ صَاحِبِ الإِبِلِ الْمُعَقَّلَةِ إِذَا عَاهَدَ عَلَيْهَا أَمْسَكَهَا وَإِنْ أَطْلَقَهَا ذَهَبَتْ " .
It was narrated from Ibn Umar that:The Messenger of Allah (ﷺ) said: "The one who learns the Quran is like the owner of a hobbled camel. If he pays attention to it, he will keep it, but if he releases it, it will go away
Sahih (Abu Ghuddah)
Sunan an-Nasaʾi 942 · Book 11, Hadith 67