When you are worried about everyone else's state
A verse people often quote at each other, with a condition inside it.
يَـٰٓأَيُّهَا ٱلَّذِينَ ءَامَنُوا۟ عَلَيْكُمْ أَنفُسَكُمْ ۖ لَا يَضُرُّكُم مَّن ضَلَّ إِذَا ٱهْتَدَيْتُمْ ۚ إِلَى ٱللَّهِ مَرْجِعُكُمْ جَمِيعًا فَيُنَبِّئُكُم بِمَا كُنتُمْ تَعْمَلُونَ
Yā ayyuha-lladhīna āmanū ʿalaykum anfusakum, lā yaḍurrukum man ḍalla idha-htadaytum…
“O you who have believed, upon you is [responsibility for] yourselves. Those who have gone astray will not harm you when you have been guided. To Allāh is your return all together; then He will inform you of what you used to do.”
Abū Bakr warned people against misreading it as licence to stay silent, and quoted the hadith about a people who see a wrong and do not change it.
Source
The Qur'an · 5:105
Qur'an
- Qur'anic text in the Uthmani script via Quran.com; translation: Saheeh International