the Messenger of Allah said: "There are no days in which righteous deeds are more beloved to Allah than those ten days." They said: "O Messenger of Allah! Not even Jihad in Allah Cause?" The Messenger of Allah said: "Not even Jihad in Allah's Cause, unless a man were to out with his self and his wealth and not return from that with anything."  

قَالَ رَسُولُ اللَّهِ ﷺ مَا مِنْ أَيَّامٍ الْعَمَلُ الصَّالِحُ فِيهِنَّ أَحَبُّ إِلَى اللَّهِ مِنْ هَذِهِ الأَيَّامِ الْعَشْرِ فَقَالُوا يَا رَسُولَ اللَّهِ وَلاَ الْجِهَادُ فِي سَبِيلِ اللَّهِ فَقَالَ رَسُولُ اللَّهِ ﷺ وَلاَ الْجِهَادُ فِي سَبِيلِ اللَّهِ إِلاَّ رَجُلٌ خَرَجَ بِنَفْسِهِ وَمَالِهِ فَلَمْ يَرْجِعْ مِنْ ذَلِكَ بِشَيْءٍ وَفِي الْبَابِ عَنِ ابْنِ عُمَرَ وَأَبِي هُرَيْرَةَ وَعَبْدِ اللَّهِ بْنِ عَمْرٍو وَجَابِرٍ  

the Prophet said: "There are no days more beloved to Allah that He be worshipped in them than the ten days of Dhul-Hijjah, fasting every day of them is the equivalent of fasting a year, and standing every night of them (in prayer) is the equivalent of standing on the Night of Qadr."  

عَنِ النَّبِيِّ ﷺ قَالَ مَا مِنْ أَيَّامٍ أَحَبُّ إِلَى اللَّهِ أَنْ يُتَعَبَّدَ لَهُ فِيهَا مِنْ عَشْرِ ذِي الْحِجَّةِ يَعْدِلُ صِيَامُ كُلِّ يَوْمٍ مِنْهَا بِصِيَامِ سَنَةٍ وَقِيَامُ كُلِّ لَيْلَةٍ مِنْهَا بِقِيَامِ لَيْلَةِ الْقَدْرِ