Al-Kāfi
Hadith 1593عَلِيُّ بْنُ مُحَمَّدٍ عَنْ بَعْضِ أَصْحَابِهِ عَنْ يَاسِرٍ قَالَ قَالَ أَبُو الْحَسَنِ ( عليه السلام ) عَجَباً لِمَنْ أَكَلَ مِثْلَ ذَا وَ أَشَارَ بِيَدِهِ وَ لَمْ يَشْرَبْ عَلَيْهِ الْمَاءَ كَيْفَ لَا تَنْشَقُّ مَعِدَتُهُ .
4. Ali ibn Muhammad has narrated from certain persons of his people from Yasir who have said the following: “Abu al-Hassan (a.s.), once said, ‘I wonder about the one who eats ‘this much,’ making a hand gesture, ‘and does not drink any water on it, how is it that his stomach does not burst.’”