Al-Kāfi - Volume 3 > Performing Two Salah (Prayer) Soon After the Other
Hadith #5

5ـ عَلِيُّ بْنُ مُحَمَّدٍ عَنِ الْفَضْلِ بْنِ مُحَمَّدٍ عَنْ يَحْيَى بْنِ أَبِي زَكَرِيَّا عَنْ أَبَانٍ عَنْ صَفْوَانَ الْجَمَّالِ قَالَ صَلَّى بِنَا أَبُو عَبْدِ الله (عَلَيْهِ الْسَّلام) الظُّهْرَ وَالْعَصْرَ عِنْدَ مَا زَالَتِ الشَّمْسُ بِأَذَانٍ وَإِقَامَتَيْنِ وَقَالَ إِنِّي عَلَى حَاجَةٍ فَتَنَفَّلُوا.

5. Ali ibn Muhammad has narrated from al-Fadl ibn Muhammad ibn Yahya ibn Zakariya from Aban from Safwan al-Jammal who has said the following: “Abu ‘Abd Allah, ‘Alayhi al-Salam, performed with us al-Dhuhr and al-‘Asr Salah (prayer) after the sun declined (toward the west at noontime), with one Adhan and two ‘Iqamah, and said, ‘I need to do something, so you can perform optional Salah (prayer).”’