"The Messenger of Allah ﷺ said: 'Whoever spends on a pair (of things) in the cause of Allah, the gatekeepers of Paradise will call him from the gates of Paradise (saying): O So-and-so, come and enter!' Abu Bakr said: 'O Messenger of Allah, such a person will never perish or be miserable.' The Messenger of Allah ﷺ said: 'I hope that you will be one of them.'" (Using translation from Nasāʾī 3184)
قَالَ رَسُولُ اللهِ ﷺ مَنْ أَنْفَقَ زَوْجَيْنِ فِي سَبِيلِ اللهِ دَعَتْهُ خَزَنَةُ كُلِّ بَابٍ مِنْ أَبْوَابِ الْجَنَّةِ يَا فُلَانُ هَلُمَّ فَادْخُلْ فَقَالَ أَبُو بَكْرٍ يَا رَسُولَ اللهِ ذَلِكَ الَّذِي لَا تَوِي عَلَيْهِ فَقَالَ رَسُولُ اللهِ ﷺ «إِنِّي لَأَرْجُو أَنْ تَكُونَ مِنْهُمْ»