Hadith 1924
۞
366. Amīr al-mu’minīn, peace be upon him, said: Knowledge is associated with action. Therefore, he who knows should act, because knowledge calls for action; if there is a response well and good, otherwise it (i.e., knowledge) departs from him.
٣٦٦. وَقَالَ (عليه السلام): الْعِلْمُ مَقْرُونٌ بِالْعَمَلِ فَمَنْ عَلِمَ عَمِلَ، وَالْعِلْمُ يَهْتِفُ بِالْعَمَلِ فَإِنْ أَجَابَهُ وَإِلَّا ارْتَحَلَ عَنْهُ.