TABARANI 5538:
from ʿUthmān And Kānat Liʾabīh Ṣuḥbah —
[Machine] The Messenger of Allah ﷺ said: "Rajab is a great month in which Allah multiplies the rewards. So whoever fasts for a day in Rajab, it is as if he has fasted for a whole year. And whoever fasts for seven days, the seven gates of Hell will be closed to him. And whoever fasts for eight days, the eight gates of Paradise will be opened for him. And whoever fasts for ten days, Allah will grant him whatever he asks for. And whoever fasts for fifteen days, a caller will announce in the heavens: 'May Allah forgive what has passed for you, so start anew.' And whoever does more, Allah will increase it. And in Rajab, Allah carried Noah in the ark, so he fasted in Rajab and commanded his companions to fast. The ark set sail with them for six months, until they landed on Mount Judi. And Noah and those with him expressed gratitude to Allah. And on the day of Ashura, Allah split the sea for the children of Israel. And on the day of Ashura, Allah accepted the repentance of Adam and the city of Yunus. And in Rajab, Ibrahim ﷺ was born."
الطبراني ٥٥٣٨:
عن عثمان و كانت لءبيه صحبه —
قَالَ رَسُولُ اللهِ ﷺ «رَجَبٌ شَهْرٌ عَظِيمٌ يُضَاعِفُ اللهُ فِيهِ الْحَسَنَاتِ فَمَنْ صَامَ يَوْمًا مِنْ رَجَبٍ فَكَأَنَّمَا صَامَ سَنَةً وَمَنْ صَامَ مِنْهُ سَبْعَةَ أَيَّامٍ غُلِّقَتْ عَنْهُ سَبْعَةُ أَبْوَابِ جَهَنَّمَ وَمَنْ صَامَ مِنْهُ ثَمَانِيَةَ أَيَّامٍ فُتِحَتْ لَهُ ثَمَانِيَةُ أَبْوَابِ الْجَنَّةِ وَمَنْ صَامَ مِنْهُ عَشَرَةَ أَيَّامٍ لَمْ يَسْأَلِ اللهَ شَيْئًا إِلَّا أَعْطَاهُ إِيَّاهُ وَمَنْ صَامَ مِنْهُ خَمْسَةَ عَشَرَ يَوْمًا نَادَى مُنَادٍ فِي السَّمَاءِ قَدْ غُفِرَ لَكَ مَا مَضَى فَاسْتَئْنِفِ الْعَمَلَ وَمَنْ زَادَ زَادَهُ اللهُ ﷻ وَفِي رَجَبٍ حَمَلَ اللهُ نُوحًا فِي السَّفِينَةِ فَصَامَ رَجَبًا وَأَمَرَ مَنْ مَعَهُ أَنْ يَصُومُوا فَجَرَتْ بِهِمُ السَّفِينَةُ سِتَّةَ أَشْهُرٍ آخِرُ ذَلِكَ يَوْمُ عَاشُورَاءَ أُهْبِطَ عَلَى الْجُودِيِّ فَصَامَ نُوحٌ وَمَنْ مَعَهُ وَالْوَحْشُ شُكْرًا لِلَّهِ ﷻ وَفِي يَوْمِ عَاشُورَاءَ أفْلَقَ اللهُ الْبَحْرَ لِبَنِي إِسْرَائِيلَ وَفِي يَوْمِ عَاشُورَاءَ تَابَ اللهُ ﷻ عَلَى آدَمَ ﷺ وَعَلَى مَدِينَةِ يُونُسَ وَفِيهِ وُلِدَ إِبْرَاهِيمُ ﷺ»
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