Someone giving advice to his brother when he has

Ibn 'Umar saw a shepherd with some sheep in a bad place and saw a place which was better than it. He told him, "Woe to you, shepherd! Move them! I heard the Messenger of Allah ﷺ say, 'Every shepherd is responsible for his flock.'"

حَدَّثَنَا عَمْرُو بْنُ خَالِدٍ، قَالَ: حَدَّثَنَا بَكْرٌ، عَنِ ابْنِ عَجْلاَنَ، أَنَّ وَهْبَ بْنَ كَيْسَانَ أَخْبَرَهُ، وَكَانَ وَهْبٌ أَدْرَكَ عَبْدَ اللهِ بْنَ عُمَرَ، أَنَّ ابْنَ عُمَرَ رَأَى رَاعِيًا وَغَنَمًا فِي مَكَانٍ قَبِيحٍ وَرَأَى مَكَانًا أَمْثَلَ مِنْهُ، فَقَالَ لَهُ: وَيْحَكَ، يَا رَاعِي، حَوِّلْهَا، فَإِنِّي سَمِعْتُ رَسُولَ اللهِ ﷺ يَقُولُ: كُلُّ رَاعٍ مَسْئُولٌ عَنْ رَعِيَّتِهِ.