From his father, who said that the Prophet ﷺ said: "When one of you buys meat, then let him increase its broth. For, if he does not find any meat you'll have broth; and it is one of the two meats." And there are narrations on this topic from Abu Dharr.  

قَالَ النَّبِيُّ ﷺ إِذَا اشْتَرَى أَحَدُكُمْ لَحْمًا فَلْيُكْثِرْ مَرَقَتَهُ فَإِنْ لَمْ يَجِدْ لَحْمًا أَصَابَ مَرَقَةً وَهُوَ أَحَدُ اللَّحْمَيْنِ وَفِي الْبَابِ عَنْ أَبِي ذَرٍّ  

That the Messenger of Allah ﷺ said: "Let one of you not consider any good to be insignificant. If he has nothing, then let him meet his brother with a smiling face. If you buy some meat or cook something in a pot, then increase its broth, and serve some of it to your neighbor."  

قَالَ رَسُولُ اللَّهِ ﷺ لاَ يَحْقِرَنَّ أَحَدُكُمْ شَيْئًا مِنَ الْمَعْرُوفِ وَإِنْ لَمْ يَجِدْ فَلْيَلْقَ أَخَاهُ بِوَجْهٍ طَلِيقٍ وَإِنِ اشْتَرَيْتَ لَحْمًا أَوْ طَبَخْتَ قِدْرًا فَأَكْثِرْ مَرَقَتَهُ وَاغْرِفْ لِجَارِكَ مِنْهُ