Whenever a beggar or a person in need of something came to the Prophet ﷺ , he used to say (to his companions), "Intercede (for him) and you will be rewarded for that, and Allah will fulfill what He will through His Apostle's tongue."
كَانَ النَّبِيُّ ﷺ إِذَا أَتَاهُ السَّائِلُ وَرُبَّمَا قَالَ جَاءَهُ السَّائِلُ أَوْ صَاحِبُ الْحَاجَةِ قَالَ اشْفَعُوا فَلْتُؤْجَرُوا وَيَقْضِي اللَّهُ عَلَى لِسَانِ رَسُولِهِ مَا شَاءَ