عَنْ أَبِي مَسْعُودٍ الْأَنْصَارِيِّ رَضِيَ اللَّهُ عَنْهُ، قَالَ: أَشَارَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَآلِهِ وَسَلَّمَ بِيَدِهِ نَحْوَ الْيَمَنِ فَقَالَ: ”الْإِيمَانُ هَاهُنَا“، قَالَ: ”أَلَا! وَإِنَّ الْقَسْوَةَ وَغِلَظَ الْقُلُوبِ فِي الْفَدَّادِينَ عِنْدَ أُصُولِ أَذْنَابِ الْإِبِلِ، حَيْثُ يَطْلُعُ قَرْنُ الشَّيْطَانِ فِي رَبِيعَةَ وَمُضَرَ“
It is narrated from Sayyiduna Abu Mas’ud Ansari (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) pointed with his blessed hand towards Yemen and said: “The origin of faith is here, and harshness and hardness of hearts are among the owners of camels, where the horn of Satan will appear, among the tribes of Rabi’ah and Mudar.”