وَلَعَبْدٌ مُّؤْمِنٌ خَيْرٌ مِّن مُّشْرِكٍ وَلَوْ أَعْجَبَكُمْ
Meaning: And a believer is better than a mushriq ( a polytheist ) even if he amazes you.
Annotation: Muslim is an Arabic word. The person who surrenders on Allahu tawala is regarded as a muslim. A pure muslim follows the instructions of the Quran.

One whom Allahu tawala loves is testified with musibah

Allahu tawala announces war with the person who keeps enmity with the friend of Allahu tawala

Every pain removes the sins of a muslim

وَعَن أبي هُرَيْرَة وَأبي سَعِيدٍ عَنِ النَّبِيِّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ قَالَ: «مَا يُصِيبُ الْمُسْلِمَ مِنْ نَصَبٍ وَلَا وَصَبٍ وَلَا هَمٍّ وَلَا حُزْنٍ وَلَا أَذًى وَلَا غَمٍّ حَتَّى الشَّوْكَةُ يُشَاكُهَا إِلَّا كَفَّرَ اللَّهُ بهَا من خطاياه»
مُتَّفق عَلَيْهِ (الألباني) :حكم
Meaning: He and Abu Sa'id reported the Prophet as saying, “When a muslim falls in difficulty, continuous pain, anxiety, grief, injury, or care, or even by a thorn with which he is pierced, Allah jalla jalaaluhu thereby removes his sins.” Bukhari and Muslim
Reference : Mishkat al-Masabih 1537 In-book reference : Book 5, Hadith 15

Placing the hands on the head of an orphan makes the heart soft

Showing good bahaviour one can attain the rewards like the person who performs fasting and performs the salah during night :

وعن عائشة رضي الله عنها، قالت‏:‏ سمعت رسول الله صلى الله عليه وسلم يقول‏:‏ “ إن المؤمن ليدرك بحسن خلقه درجة الصائم القائم
(‏رواه أبو داود‏)
Meaning:
Aishah (May Allah be pleased with her) reported: I heard Messenger of Allah (ﷺ) saying: "A believer will attain by his good behaviour the rank of one who prays during the night and observes fasting during the day."
Abu Dawud
Reference : Riyad as-Salihin 628 In-book reference : Introduction, Hadith 628

The muslims are like brothers

إِنَّمَا الْمُؤْمِنُونَ إِخْوَةٌ فَأَصْلِحُوا بَيْنَ أَخَوَيْكُمْ ۚ وَاتَّقُوا اللَّهَ لَعَلَّكُمْ تُرْحَمُونَ
الحجرات: 10
Meaning:
The believers are nothing else than brothers (in Islamic religion). So make reconciliation between your brothers, and fear Allah, that you may receive mercy.
Al Hujuraat: 10

The best deeds

أفْضَلُ الْأَعْمَالِ أَنْ تُدْخِلَ عَلٰى أَخِيْكَ الْمُؤْمِنِ سُرُوْرًا ، أَوْ تَقْضِى عَنْهُ دَيْنًا ، أَوْ تُطْعِمَهُ خُبْزًا
الراوي : عبدالله بن عمر وأبو هريرة | المحدث : الألباني | المصدر : صحيح الجامع
Meaning:
The best deeds are to bring joy to your believing brother, or to pay off his debt, or to feed him bread.
Narrator: Abdullah ibn Umar and Abu Hurairah | Narrator: Al-Albani | Source: Sahih Al-Jami

The deed that removes the distress of the day of judgement

How to get the position under the shade in the day of judgement