The facial complexion of Imaam Shaafi‘ee (rahimahullah) changed. He then went and did not come out until the third day between Zuhr and Asr, in the condition that he was extremely sick. He hardly sat down when the old man came, greeted him and sat beside him. He then asked for his proof. Imaam Shaafi‘ee (rahimahullah) said, “Yes”, and he began reciting the verses:
وَ مَنۡ یُّشَاقِقِ الرَّسُوۡلَ مِنۡۢ بَعۡدِ مَا تَبَیَّنَ لَہُ الۡہُدٰی وَ یَتَّبِعۡ غَیۡرَ سَبِیۡلِ الۡمُؤۡمِنِیۡنَ نُوَلِّہٖ مَا تَوَلّٰی وَ نُصۡلِہٖ جَہَنَّمَ ؕ وَ سَآءَتۡ مَصِیۡرًا ﴿۱۱۵﴾٪
And whoever opposes the Messenger after guidance has become clear to him and follows a path other than the path of the believers, we shall (forsake him) and let him continue on his path, and thereafter We shall drive him towards Hell, and evil it is as an abode.
The man said, “You have spoken the truth.” The man then left. Imaam Shaafi‘ee (rahimahullah) said to those seated around him, “I recited the entire Qur’aan thrice daily for three days, until the proof finally dawned upon me.”
Siyar A’laam min Nubalaa 8/414