Hadith on Ummah: Allah pleased by unity, displeased by division

Abu Huraira reported: The Messenger of Allah, peace and blessings be upon him, said, “Verily, Allah Almighty is pleased with you by three things and displeased by three things. He is pleased for you to worship him without associating anything with him, to hold fast to the rope of Allah altogether, and to not become divided. He is displeased for you to gossip among yourselves, to ask many unnecessary questions, and to waste your wealth.”

Source: Ṣaḥīḥ Muslim 1715

Grade: Sahih (authentic) according to Muslim

عَنْ أَبِي هُرَيْرَةَ قَالَ قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ إِنَّ اللَّهَ يَرْضَى لَكُمْ ثَلَاثًا وَيَكْرَهُ لَكُمْ ثَلَاثًا فَيَرْضَى لَكُمْ أَنْ تَعْبُدُوهُ وَلَا تُشْرِكُوا بِهِ شَيْئًا وَأَنْ تَعْتَصِمُوا بِحَبْلِ اللَّهِ جَمِيعًا وَلَا تَفَرَّقُوا وَيَكْرَهُ لَكُمْ قِيلَ وَقَالَ وَكَثْرَةَ السُّؤَالِ وَإِضَاعَةِ الْمَالِ

1715 صحيح مسلم كتاب الأقضية باب النهي عن كثرة المسائل من غير حاجة