Messenger of Allah ﷺ said, "When Allah created the creations, He wrote with Him on His Throne: 'My Mercy has preceded My Anger."  

أَنَّ رَسُولَ اللَّهِ ﷺ قَالَ لَمَّا قَضَى اللَّهُ الْخَلْقَ كَتَبَ عِنْدَهُ فَوْقَ عَرْشِهِ إِنَّ رَحْمَتِي سَبَقَتْ غَضَبِي  

Messenger of Allah ﷺ the true and truly inspired, narrated to us, "The creation of everyone of you starts with the process of collecting the material for his body within forty days and forty nights in the womb of his mother. Then he becomes a clot of thick blood for a similar period (40 days) and then he becomes like a piece of flesh for a similar period. Then an angel is sent to him (by Allah) and the angel is allowed (ordered) to write four things; his livelihood, his (date of) death, his deeds, and whether he will be a wretched one or a blessed one (in the Hereafter) and then the soul is breathed into him. So one of you may do (good) deeds characteristic of the people of Paradise so much that there is nothing except a cubit between him and Paradise but then what has been written for him decides his behavior and he starts doing (evil) deeds characteristic of the people of Hell (Fire) and (ultimately) enters Hell (Fire); and one of you may do (evil) deeds characteristic of the people of Hell (Fire) so much so that there is nothing except a cubit between him and Hell (Fire), then what has been written for him decides his behavior and he starts doing (good) deeds characteristic of the people of Paradise and ultimately) enters Paradise." (See Hadith No. 430, Vol. 4)  

حَدَّثَنَا رَسُولُ اللَّهِ ﷺ وَهْوَ الصَّادِقُ الْمَصْدُوقُ إِنَّ خَلْقَ أَحَدِكُمْ يُجْمَعُ فِي بَطْنِ أُمِّهِ أَرْبَعِينَ يَوْمًا وَأَرْبَعِينَ لَيْلَةً ثُمَّ يَكُونُ عَلَقَةً مِثْلَهُ ثُمَّ يَكُونُ مُضْغَةً مِثْلَهُ ثُمَّ يُبْعَثُ إِلَيْهِ الْمَلَكُ فَيُؤْذَنُ بِأَرْبَعِ كَلِمَاتٍ فَيَكْتُبُ رِزْقَهُ وَأَجَلَهُ وَعَمَلَهُ وَشَقِيٌّ أَمْ سَعِيدٌ ثُمَّ يَنْفُخُ فِيهِ الرُّوحَ فَإِنَّ أَحَدَكُمْ لَيَعْمَلُ بِعَمَلِ أَهْلِ الْجَنَّةِ حَتَّى لاَ يَكُونُ بَيْنَهَا وَبَيْنَهُ إِلاَّ ذِرَاعٌ فَيَسْبِقُ عَلَيْهِ الْكِتَابُ فَيَعْمَلُ بِعَمَلِ أَهْلِ النَّارِ فَيَدْخُلُ النَّارَ وَإِنَّ أَحَدَكُمْ لَيَعْمَلُ بِعَمَلِ أَهْلِ النَّارِ حَتَّى مَا يَكُونُ بَيْنَهَا وَبَيْنَهُ إِلاَّ ذِرَاعٌ فَيَسْبِقُ عَلَيْهِ الْكِتَابُ فَيَعْمَلُ عَمَلَ أَهْلِ الْجَنَّةِ فَيَدْخُلُهَا  

The Prophet ﷺ said, "O Gabriel, what prevents you. from visiting us more often than you do?" Then this Verse was revealed:--'And we angels descend not but by Command of your Lord. To Him belongs what is before us and what is behind us..' (19.64) So this was the answer to Muhammad.  

أَنَّ النَّبِيَّ ﷺ قَالَ يَا جِبْرِيلُ مَا يَمْنَعُكَ أَنْ تَزُورَنَا أَكْثَرَ مِمَّا تَزُورُنَا فَنَزَلَتْ {وَمَا نَتَنَزَّلُ إِلاَّ بِأَمْرِ رَبِّكَ لَهُ مَا بَيْنَ أَيْدِينَا وَمَا خَلْفَنَا} إِلَى آخِرِ الآيَةِ قَالَ هَذَا كَانَ الْجَوَابَ لِمُحَمَّدٍ ﷺ  

While I was walking with Messenger of Allah ﷺ in one of the fields of Medina and he was walking leaning on a stick, he passed a group of Jews. Some of them said to the others, "Ask him (the Prophet) about the spirit." Others said, "Do not ask him." But they asked him and he stood leaning on the stick and I was standing behind him and I thought that he was being divinely inspired. Then he said, "They ask you concerning the spirit say: The spirit, its knowledge is with My Lord. And of knowledge you (O men!) have been given only a little." ...(17.85) On that some of the Jews said to the others, "Didn't we tell you not to ask?"  

كُنْتُ أَمْشِي مَعَ رَسُولِ اللَّهِ ﷺ فِي حَرْثٍ بِالْمَدِينَةِ وَهْوَ مُتَّكِئٌ عَلَى عَسِيبٍ فَمَرَّ بِقَوْمٍ مِنَ الْيَهُودِ فَقَالَ بَعْضُهُمْ لِبَعْضٍ سَلُوهُ عَنِ الرُّوحِ وَقَالَ بَعْضُهُمْ لاَ تَسْأَلُوهُ عَنِ الرُّوحِ فَسَأَلُوهُ فَقَامَ مُتَوَكِّئًا عَلَى الْعَسِيبِ وَأَنَا خَلْفَهُ فَظَنَنْتُ أَنَّهُ يُوحَى إِلَيْهِ فَقَالَ {وَيَسْأَلُونَكَ عَنِ الرُّوحِ قُلِ الرُّوحُ مِنْ أَمْرِ رَبِّي وَمَا أُوتِيتُمْ مِنَ الْعِلْمِ إِلاَّ قَلِيلاً} فَقَالَ بَعْضُهُمْ لِبَعْضٍ قَدْ قُلْنَا لَكُمْ لاَ تَسْأَلُوهُ  

Messenger of Allah ﷺ said, "Allah guarantees to the person who carries out Jihad for His Cause and nothing compelled him to go out but the Jihad in His Cause, and belief in His Words, that He will either admit him into Paradise or return him with his reward or the booty he has earned to his residence from where he went out." (See Hadith No. 555).  

أَنَّ رَسُولَ اللَّهِ ﷺ قَالَ تَكَفَّلَ اللَّهُ لِمَنْ جَاهَدَ فِي سَبِيلِهِ لاَ يُخْرِجُهُ إِلاَّ الْجِهَادُ فِي سَبِيلِهِ وَتَصْدِيقُ كَلِمَاتِهِ بِأَنْ يُدْخِلَهُ الْجَنَّةَ أَوْ يَرْجِعَهُ إِلَى مَسْكَنِهِ الَّذِي خَرَجَ مِنْهُ مَعَ مَا نَالَ مِنْ أَجْرٍ أَوْ غَنِيمَةٍ  

A man came to the Prophet ﷺ and said, "A man fights for pride and haughtiness another fights for bravery, and another fights for showing off; which of these (cases) is in Allah's Cause?" The Prophet ﷺ said, "The one who fights that Allah's Word (Islam) should be superior, fights in Allah's Cause."  

جَاءَ رَجُلٌ إِلَى النَّبِيِّ ﷺ فَقَالَ: الرَّجُلُ يُقَاتِلُ حَمِيَّةً وَيُقَاتِلُ شَجَاعَةً وَيُقَاتِلُ رِيَاءً، فَأَىُّ ذَلِكَ فِي سَبِيلِ اللَّهِ؟ قَالَ: «مَنْ قَاتَلَ لِتَكُونَ كَلِمَةُ اللَّهِ هِيَ الْعُلْيَا فَهْوَ فِي سَبِيلِ اللَّهِ۔»