AHMAD-ZUHD 465:
from Mujāhid —
[Machine] He said, "The food of Yahya, ﷺ , was grass, and even though he would cry out of fear of Allah, if a thorn were to touch his eye it would cut it. And indeed, tears would flow down his face."
الزهد لأحمد ٤٦٥:
عن مجاهد —
قَالَ «كَانَ طَعَامُ يَحْيَى بْنِ زَكَرِيَّا عَلَيْهِ السَّلَامُ الْعُشْبَ وَإِنْ كَانَ لَيَبْكِي مِنْ خَشْيَةِ اللَّهِ ﷻ مَا لَوْ كَانَ الْقَارُ عَلَى عَيْنَيْهِ لَخَرَقَهُ وَلَقَدْ كَانَتِ الدُّمُوعُ اتَّخَذَتْ مَجْرًى فِي وَجْهِهِ»