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Grade : Hasan Sahih (Abu Ghuddah)
أَخْبَرَنَا زِيَادُ بْنُ أَيُّوبَ، قَالَ حَدَّثَنَا ابْنُ عُلَيَّةَ، قَالَ حَدَّثَنَا أَيُّوبُ، قَالَ حَدَّثَنَا عَمْرُو بْنُ شُعَيْبٍ، قَالَ حَدَّثَنِي أَبِي، عَنْ أَبِيهِ، حَتَّى ذَكَرَ عَبْدَ اللَّهِ بْنَ عَمْرٍو قَالَ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم " لاَ يَحِلُّ سَلَفٌ وَبَيْعٌ وَلاَ شَرْطَانِ فِي بَيْعٍ وَلاَ رِبْحُ مَا لَمْ يُضْمَنْ " .
Amr bin shu'aib said:"My father told me, mar rating from his father, from his father (and he mentioned 'Abdullah bin 'Amr) that he said: "The Messenger of Allah said: "It is not permissible to lend on the condition of a sale, or to stipulate two conditions in one transaction, or to make a profit on that which you do not possess
"When a person dies, his works end, except for three: ongoing charity, knowledge that is benefited from, and a righteous child who prays for him."
Prophet Mohammed (PBUH)
"The best of what a man leaves behind are three: a righteous child who supplicates for him, ongoing charity the reward of which reaches him, and knowledge that is acted upon after him."
Sunan Ibn Mājah
"Every day two angels come down from Heaven and one of them says, 'O Allah! Compensate every person who spends in Your Cause,' and the other (angel) says, 'O Allah! Destroy every miser.'"
Sahih Bukhari