عَنْ سَالِمِ بْنِ عَبْدِ اللَّهِ أَخْبَرَنِي أَبُو أَيُّوبَ الْأَنْصَارِيُّ رَضِيَ اللَّهُ عَنْهُ أَنَّ رَسُولَ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَآلِهِ وَسَلَّمَ لَيْلَةَ أُسْرِيَ بِهِ مَرَّ عَلَى إِبْرَاهِيمَ فَقَالَ مَنْ مَعَكَ يَا جِبْرِيلُ قَالَ هَذَا مُحَمَّدٌ فَقَالَ لَهُ إِبْرَاهِيمُ مُرْ أُمَّتَكَ فَلْيُكْثِرُوا مِنْ غِرَاسِ الْجَنَّةِ فَإِنَّ تُرْبَتَهَا طَيِّبَةٌ وَأَرْضَهَا وَاسِعَةٌ قَالَ وَمَا غِرَاسُ الْجَنَّةِ قَالَ لَا حَوْلَ وَلَا قُوَّةَ إِلَّا بِاللَّهِ
It is narrated from Sayyiduna Abu Ayyub Ansari (may Allah be pleased with him) that on the night when the Messenger of Allah (peace and blessings be upon him) was taken for Isra (and Mi'raj), he (peace and blessings be upon him) passed by Ibrahim (peace be upon him). He (Ibrahim) asked: O Jibril! Who is with you? He (Jibril) said: This is Muhammad (peace and blessings be upon him). Ibrahim (peace be upon him) said: Instruct your Ummah to plant as many trees as possible in Paradise, for indeed its soil is pure and fertile and its land is vast. The Prophet (peace and blessings be upon him) asked: What are the trees of Paradise? He (Ibrahim) said: "La hawla wa la quwwata illa billah."