Haritha was martyred on the day (of the battle) of Badr while he was young. His mother came to the Prophet ﷺ saying, "O Messenger of Allah ﷺ! You know the relation of Haritha to me (how fond of him I was); so, if he is in Paradise, I will remain patient and wish for Allah's reward, but if he is not there, then you will see what I will do." The Prophet ﷺ replied, "May Allah be merciful upon you! Have you gone mad? (Do you think) it is one Paradise? There are many Paradises and he is in the (most superior) Paradise of Al-Firdaus."  

سَمِعْتُ أَنَسًا يَقُولُ أُصِيبَ حَارِثَةُ يَوْمَ بَدْرٍ وَهْوَ غُلاَمٌ فَجَاءَتْ أُمُّهُ إِلَى النَّبِيِّ ﷺ فَقَالَتْ يَا رَسُولَ اللَّهِ قَدْ عَرَفْتَ مَنْزِلَةَ حَارِثَةَ مِنِّي فَإِنْ يَكُ فِي الْجَنَّةِ أَصْبِرْ وَأَحْتَسِبْ وَإِنْ تَكُنِ الأُخْرَى تَرَى مَا أَصْنَعُ فَقَالَ وَيْحَكِ أَوَهَبِلْتِ أَوَجَنَّةٌ وَاحِدَةٌ هِيَ جِنَانٌ كَثِيرَةٌ وَإِنَّهُ لَفِي جَنَّةِ الْفِرْدَوْسِ  

Um (the mother of) Haritha came to Messenger of Allah ﷺ after Haritha had been martyred on the Day (of the battle) of Badr by an arrow thrown by an unknown person. She said, "O Messenger of Allah ﷺ! You know the position of Haritha in my heart (i.e. how dear to me he was), so if he is in Paradise, I will not weep for him, or otherwise, you will see what I will do." The Prophet ﷺ said, "Are you mad? Is there only one Paradise? There are many Paradises, and he is in the highest Paradise of Firdaus." The Prophet added, "A forenoon journey or an after noon journey in Allah's Cause is better than the whole world and whatever is in it; and a place equal to an arrow bow of anyone of you, or a place equal to a foot in Paradise is better than the whole world and whatever is in it; and if one of the women of Paradise looked at the earth, she would fill the whole space between them (the earth and the heaven) with light, and would fill whatever is in between them, with perfume, and the veil of her face is better than the whole world and whatever is in it." (Using translation from Bukhārī 6567)  

أَنَّ أُمَّ حَارِثَةَ أَتَتْ رَسُولَ اللهِ ﷺ وَقَدْ هَلَكَ حَارِثَةُ يَوْمَ بَدْرٍ أَصَابَهُ سَهْمٌ غَرْبٌ فَقَالَتْ يَا رَسُولَ اللهِ قَدْ عَلِمْتَ مَوْقِعَ حَارِثَةَ مِنْ قَلْبِي فَإِنْ كَانَ فِي الْجَنَّةِ لَمْ أَبْكِ عَلَيْهِ وَإِلَّا فَسَوْفَ تَرَى مَا أَصْنَعُ فَقَالَ لَهَا هَبِلْتِ؟ أَوَجَنَّةٌ وَاحِدَةٌ هِيَ؟ إِنَّهَا جِنَانٌ كَثِيرَةٌ وَإِنَّهُ فِي الْفِرْدَوْسِ الْأَعْلَى  

[Machine] "O Messenger of Allah, you have known the status of Haritha from me. If he is among the people of paradise, then I will be patient. But if not, then you will see what I will do." He said, "O Umm Haritha, it is not just one paradise, but there are many gardens, and he is in the highest level of paradise." She said, "Then I will be patient."  

يَا رَسُولَ اللهِ قَدْ عَلِمْتَ مَكَانَ حَارِثَةَ مِنِّي فَإِنْ يَكُنْ مِنْ أَهْلِ الْجَنَّةِ فَسَأَصْبِرُ وَإِلَّا فَسَتَرَى مَا أَصْنَعُ قَالَ «يَا أُمَّ حَارِثَةَ إِنَّهَا لَيْسَتْ بِجَنَّةٍ وَاحِدَةٍ وَلَكِنَّهَا جِنَانٌ كَثِيرَةٌ وَهُوَ فِي الْفِرْدَوْسِ الْأَعْلَى» قَالتْ فَسَأَصْبِرُ