197. hadíth
وَ سَأَلَ رَجُلٌ اَلصَّادِقَ عَلَيْهِ اَلسَّلاَمُ فَقَالَ: آكُلُ وَ أَنَا أَشُكُّ فِي اَلْفَجْرِ فَقَالَ «كُلْ حَتَّى لاَ تَشُكَّ».
A man asked Imam Jafar ibn Muhammad Al-Sadiq (a.s), "I eat while I am unsure if dawn has risen." Imam (a.s) replied: "Eat until you are no longer in doubt."