Hadith.1030 - Imam Jafar ibn Muhammad Al-Sadiq (as) said:
"No one misses a prayer who truly desires to pray. The prayer of the day does not miss until the sun sets, and the prayer of the night does not miss until dawn breaks."
Man Lā Yaḥḍuruh al-Faqīh #663Hadith.663 - Imam Jafar ibn Muhammad Al-Sadiq (as) said:
"When the sun sets, it becomes permissible to break the fast (if one is fasting)...