Man Lā Yaḥḍuruh al-Faqīh
Hadith 647647 - وَ سَأَلَهُ عُبَيْدُ بْنُ زُرَارَةَ: عَنْ وَقْتِ اَلظُّهْرِ وَ اَلْعَصْرِ فَقَالَ «إِذَا زَالَتِ اَلشَّمْسُ دَخَلَ وَقْتُ اَلظُّهْرِ وَ اَلْعَصْرِ جَمِيعاً إِلاَّ أَنَّ هَذِهِ قَبْلَ هَذِهِ ثُمَّ أَنْتَ فِي وَقْتٍ مِنْهُمَا جَمِيعاً حَتَّى تَغِيبَ اَلشَّمْسُ.
Hadith.647 - Ubaid ibn Zurarah asked Him, Imam Jafar ibn Muhammad Al-Sadiq (as), about the timing of the Dhuhr (noon) and Asr (afternoon) prayers.
Imam (as) replied: "When the sun declines (from its zenith), the time for both Dhuhr and Asr begins together, except that this (Dhuhr) is before that (Asr). Then you remain within the time for both of them until the sun sets”.