He said to Marwan: "O Abu Abdul-Malik, do you recite: 'Say: He is Allah, (the) One' and 'Verily, We have granted you Al-Kawthar' in maghrib?" He said: "Yes." He (Zaid) said: "I swear by Allah, I saw the Messenger of Allah ﷺ reciting the longer of the two long surahs in it: 'Alif-Lam-Mim-Sad.'"  

أَنَّهُ قَالَ لِمَرْوَانَ يَا أَبَا عَبْدِ الْمَلِكِ أَتَقْرَأُ فِي الْمَغْرِبِ بِ { قُلْ هُوَ اللَّهُ أَحَدٌ } وَ { إِنَّا أَعْطَيْنَاكَ الْكَوْثَرَ } قَالَ نَعَمْ قَالَ فَمَحْلُوفَةٌ لَقَدْ رَأَيْتُ رَسُولَ اللَّهِ ﷺ يَقْرَأُ فِيهَا بِأَطْوَلِ الطُّولَيَيْنِ { المص }  

Zaid bin Thabit said: "Why do I see you reciting short surahs in Maghrib when I saw the Messenger of Allah ﷺ reciting the longer of the two long surahs in it?" I said: "O Abu Abdullah, what is the longer of the two long surahs?" He said: "Al-A'raf."  

مَا لِي أَرَاكَ تَقْرَأُ فِي الْمَغْرِبِ بِقِصَارِ السُّوَرِ وَقَدْ رَأَيْتُ رَسُولَ اللَّهِ ﷺ يَقْرَأُ فِيهَا بِأَطْوَلِ الطُّولَيَيْنِ قُلْتُ يَا أَبَا عَبْدِ اللَّهِ مَا أَطْوَلُ الطُّولَيَيْنِ قَالَ الأَعْرَافُ  

The Messenger of Allah ﷺ recited Surat Al-A'raf in maghrib and split it between two rak'ahs.  

أَنَّ رَسُولَ اللَّهِ ﷺ قَرَأَ فِي صَلاَةِ الْمَغْرِبِ بِسُورَةِ الأَعْرَافِ فَرَّقَهَا فِي رَكْعَتَيْنِ