Sahih
حَدَّثَنَا قُتَيْبَةُ بْنُ سَعِيدٍ، حَدَّثَنَا إِسْمَاعِيلُ بْنُ جَعْفَرٍ، عَنِ الْعَلاَءِ بْنِ عَبْدِ الرَّحْمَنِ، عَنْ أَبِيهِ، عَنْ أَبِي هُرَيْرَةَ، أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم قَالَ " اتَّقُوا اللاَّعِنَيْنِ " . قَالُوا وَمَا اللاَّعِنَانِ يَا رَسُولَ اللَّهِ قَالَ " الَّذِي يَتَخَلَّى فِي طَرِيقِ النَّاسِ أَوْ ظِلِّهِمْ " .
Narrated Abu Hurairah:The Prophet (sal Allaahu alayhi wa sallam ) as saying : Be on your guard against two things which provoke cursing. They (the hearers) said : Prophet of Allaah ( sal Allaahu alayhi wa sallam), what are these things which provoke cursing: easing in the watering places and on the thoroughfares, and in the shade (of the tree)(where they take shelter and rest)