AHMAD-ZUHD 1691:
from Muʿādh b. Faḍālah —
[Machine] Indeed, we find him among the leaders of justice in the month of Rajab, one of the sacred months. Ayoub bin Suwaid explained it to him, saying: "There are three consecutive months, Dhul-Qa'dah, Dhul-Hijjah, and Muharram, and Rajab is separate."
الزهد لأحمد ١٦٩١:
عن معاذ بن فضاله —
إِنَّا نَجِدُهُ مِنْ أَئِمَّةِ الْعَدْلِ بِمَوْضِعِ رَجَبٍ مِنْ أَشْهُرِ الْحُرُمِ قَالَ فَفَسَّرَهُ لَهُ أَيُّوبُ بْنُ سُوَيْدٍ فَقَالَ ثَلَاثَةٌ مُتَوَالِيَةٌ ذُو الْقَعْدَةِ وَذُو الْحَجَّةِ وَالْمُحَرَّمُ أَبُو بَكْرٍ وَعُمَرُ وَعُثْمَانُ وَرَجَبٌ مُنْفَرِدٌ