Caution: Translations of Quran and Ḥadīth may lead to possible misapplications and misinterpretations. This site is intended for students of sacred knowledge that are proficient in comprehending classical Arabic and have a strong foundation in Islamic sciences. Also note that religious injunctions rely on several aspects beyond what one may glean through reading individual aḥādīth.
tirmidhi:2351Muḥammad b. Mūsá al-Baṣrī > Ziyād b. ʿAbdullāh > al-Aʿmash > ʿAṭiyyah > Abū Saʿīd

"The poor Muhajirin will enter Paradise before the rich among them by five hundred years."  

Abū ʿĪsá said that this Ḥadīth is Ḥasan-Gharīb in this particular context.
الترمذي:٢٣٥١حَدَّثَنَا مُحَمَّدُ بْنُ مُوسَى الْبَصْرِيُّ حَدَّثَنَا زِيَادُ بْنُ عَبْدِ اللَّهِ عَنِ الأَعْمَشِ عَنْ عَطِيَّةَ عَنْ أَبِي سَعِيدٍ قَالَ

قَالَ رَسُولُ اللَّهِ ﷺ فُقَرَاءُ الْمُهَاجِرِينَ يَدْخُلُونَ الْجَنَّةَ قَبْلَ أَغْنِيَائِهِمْ بِخَمْسِمِائَةِ سَنَةٍ وَفِي الْبَابِ عَنْ أَبِي هُرَيْرَةَ وَعَبْدِ اللَّهِ بْنِ عَمْرٍو وَجَابِرٍ  

قَالَ أَبُو عِيسَى هَذَا حَدِيثٌ حَسَنٌ غَرِيبٌ مِنْ هَذَا الْوَجْهِ

See similar narrations below:

Collected by Ibn Mājah, Suyūṭī
ibnmajah:4123Abū Bakr b. Abū Shaybah > Bakr b. ʿAbd al-Raḥman > ʿĪsá b. al-Mukhtār > Muḥammad b. Abū Laylá

“The poor Muhajirun will enter Paradise before the rich, the equivalent of five hundred years.”  

ابن ماجة:٤١٢٣حَدَّثَنَا أَبُو بَكْرِ بْنُ أَبِي شَيْبَةَ حَدَّثَنَا بَكْرُ بْنُ عَبْدِ الرَّحْمَنِ حَدَّثَنَا عِيسَى بْنُ الْمُخْتَارِ عَنْ مُحَمَّدِ بْنِ أَبِي لَيْلَى عَنْ عَطِيَّةَ الْعَوْفِيِّ عَنْ أَبِي سَعِيدٍ الْخُدْرِيِّ

عَنْ رَسُولِ اللَّهِ ﷺ قَالَ إِنَّ فُقَرَاءَ الْمُهَاجِرِينَ يَدْخُلُونَ الْجَنَّةَ قَبْلَ أَغْنِيَائِهِمْ بِمِقْدَارِ خَمْسِمِائَةِ سَنَةٍ