Sunan Abu Dawud #5116

إِنَّ الْعُلَمَاءَ وَرَثَةُ الأَنْبِيَاءِ إِنَّ الأَنْبِيَاءَ لَمْ يُوَرِّثُوا دِينَارًا وَلاَ دِرْهَمًا إِنَّمَا وَرَّثُوا الْعِلْمَ

The Messenger of Allah (ﷺ) said: 'The scholars are the heirs of the prophets. The prophets do not leave behind dinars or dirhams; they only leave behind knowledge. Whoever takes it has taken an abundant share.'