وَإِنْ لَمْ يَكُنْ ذَلِكَ وَاجِبًا إِذِ الْخُلَفَاءُ الرَّاشِدُونَ الْمَهْدِيُّونَ الَّذِينَ أَمَرَ النَّبِيُّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ بِالْعَضِّ بِالنَّوَاجِذِ عَلَى سُنَّتِهِ وَسُنَّتِهِمْ قَدِ اقْتَدَوْا بِالنَّبِيِّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ بِالنُّزُولِ بِهِ.
Although this act is not obligatory, it is recommended because the rightly guided caliphs stayed in this valley following the example of the Noble Prophet (peace be upon him), and the Noble Prophet (peace be upon him) has commanded to hold firmly to his Sunnah as well as the Sunnah of the rightly guided caliphs.