Chapter on Nature of Fasting
Tahdhīb al-Aḥkām|Volume 4|Book 2|Chapter 6
وَ عَنْهُ عَنْ عُثْمَانَ بْنِ عِيسَى عَنْ سَمَاعَةَ قَالَ: سَأَلْتُهُ عَنْ رَجُلٍ كَذَبَ فِي رَمَضَانَ فَقَالَ» قَدْ أَفْطَرَ وَ عَلَيْهِ قَضَاؤُهُ« فَقُلْتُ مَا كَذِبَتُهُ فَقَالَ» يَكْذِبُ عَلَى اَللَّهِ وَ عَلَى رَسُولِهِ صَلَّى اللَّهُ عَلَيْهِ وَآلِهِ«.
And from him, from Uthman ibn Isa, from Samaah, who said:
I (narrator) asked him about ‘a man who lied in (month of) Ramadan.’ So he said: “He has broken the fast, and he must make it up.” I (narrator) asked: “What was his lie?” So he said: “He lies against Allah سبحانه وتعالى and against His Messenger صلى الله عليه وعلى آله وسلم.”
- Tahdhīb al-Aḥkām fī Sharḥ al-Muqniʿah, vol. 4, p. 253
- Ṣaḥīḥ al-Tahdhīb, p. 357