Sheikh of shias as-Saduq in his “Maanil Akhbar” (p 165) narrated:
١ – أبي – رحمه الله – قال: حدثنا سعد بن عبد الله، عن أحمد بن محمد بن خالد، عن
أبيه، عن ابن أبي عمير، عن منصور بن يونس، عن أبي بصير، عن أبي عبد الله عليه السلام قال:
سمعته يقول: الكذبة تفطر الصائم. قال: فقلت له: هلكنا، قال: لا، إنما أعني الكذب
على الله عز وجل وعلى رسوله صلى الله عليه وآله وعلى الأئمة عليهم السلام.
(Chain till) Abu Basir which said that he heard Abu Abdullah (alaihi salam) said: “The one who lies broke his fast”. (Abu Basir said) I said to him: “We have perished”. Imam said: “No I mean lie upon Allah AzWajal and upon the prophet (sallalahu alaihi wa alihi) and upon Imams (alaihuma salam).
Chain till Abu Basir:
Father of Saduq – Ali ibn Al-Husayn ibn Babaweyh. Muhadith, faqih and shaykh as he was described by Noore.
Sad ibn Abdullah was shaykh of taifa as he described by Najashi.
Ahmad ibn Muhammad ibn Khalid was thiqah as said Hilli in “Hulasah”
Muhammad ibn Khalid al-Barqi was disputed. Hilli and Tusi praised him, and Najashi and ibn al-Ghadairi weakened him, as it is in “Hulasa”.
Ibn Abu Umayr from companions of ijma, some shia scholars said that if chain authentic till them, report is upright.
Mansur ibn Yunus – thiqat and waqifi as it is in “Hulasah”
What kind of result do we have from this report? Imam said that lie is breaking the fast. And one of the top shia narrators said after this – WE HAVE PERISHED. Sure he didn’t mean Imam, but he mean himself and his fellows. If this isn’t clear confession in lie, then what is?