It was narrated from 'Abdullah bin 'Umar that:

when the Messenger of Allah was in Dhul-Hulaifah someone came to him and he was told: "You are in a blessed valley.''(sahih)

أَخْبَرَنَا عَبْدَةُ بْنُ عَبْدِ اللَّهِ، عَنْ سُوَيْدٍ، عَنْ زُهَيْرٍ، عَنْ مُوسَى بْنِ عُقْبَةَ، عَنْ سَالِمِ بْنِ عَبْدِ اللَّهِ، عَنْ عَبْدِ اللَّهِ بْنِ عُمَرَ، عَنْ رَسُولِ اللَّهِ ﷺ أَنَّهُ وَهُوَ فِي الْمُعَرَّسِ بِذِي الْحُلَيْفَةِ أُتِيَ فَقِيلَ لَهُ إِنَّكَ بِبَطْحَاءَ مُبَارَكَةٍ .