The Messenger of Allah [SAW] said: "Whoever comes worshipping Allah and not associating anything with Him, establishing Salah, paying Zakah and avoiding major sins, Paradise will be his." They asked him about major sins and he said: "Associating others with Allah, killing a Muslim soul, and fleeing (from the battlefield) on the day of the march." (Using translation from Nasāʾī 4009)   

أَنَّ رَسُولَ اللهِ ﷺ قَالَ «مَنْ مَاتَ يَعْبُدُ اللهَ لَا يُشْرِكُ بِهِ شَيْئًا وَيُقِيمُ الصَّلَاةَ وَيُؤْتِي الزَّكَاةَ وَيَصُومُ شَهْرَ رَمَضَانَ وَيَجْتَنِبُ الْكَبَائِرَ فَلَهُ الْجَنَّةُ» فَسَأَلَهُ مَا الْكَبَائِرُ؟ قَالَ «الْإِشْرَاكُ بِاللهِ وَقَتْلُ النَّفْسِ الَّتِي حَرَّمَ اللهُ وَفِرَارُ يَوْمِ الزَّحْفِ»