Narrated 'Alqamah bin Al-Muzani:

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.

[Abu 'Eisa said:] This Hadith is Gharib, we do not know of it except through this route, as a narration of Muhammad bin Fada', who is Muhammad bin Fada' Al-Mu'abbar, and he has been criticized by Sulaiman bin Harb. 'Alqamah bin 'Abdullah is the brother of Bakr bin 'Abdullah Al-Muzani.

حَدَّثَنَا مُحَمَّدُ بْنُ عُمَرَ بْنِ عَلِيٍّ الْمُقَدَّمِيُّ، حَدَّثَنَا مُسْلِمُ بْنُ إِبْرَاهِيمَ، حَدَّثَنَا مُحَمَّدُ بْنُ فَضَاءٍ، حَدَّثَنِي أَبِي، عَنْ عَلْقَمَةَ بْنِ عَبْدِ اللَّهِ الْمُزَنِيِّ، عَنْ أَبِيهِ، قَالَ قَالَ النَّبِيُّ ﷺ " إِذَا اشْتَرَى أَحَدُكُمْ لَحْمًا فَلْيُكْثِرْ مَرَقَتَهُ فَإِنْ لَمْ يَجِدْ لَحْمًا أَصَابَ مَرَقَةً وَهُوَ أَحَدُ اللَّحْمَيْنِ " . وَفِي الْبَابِ عَنْ أَبِي ذَرٍّ .

قَالَ أَبُو عِيسَى هَذَا حَدِيثٌ غَرِيبٌ لاَ نَعْرِفُهُ إِلاَّ مِنْ هَذَا الْوَجْهِ مِنْ حَدِيثِ مُحَمَّدِ بْنِ فَضَاءٍ . وَمُحَمَّدُ بْنُ فَضَاءٍ هُوَ الْمُعَبِّرُ وَقَدْ تَكَلَّمَ فِيهِ سُلَيْمَانُ بْنُ حَرْبٍ وَعَلْقَمَةُ بْنُ عَبْدِ اللَّهِ هُوَ أَخُو بَكْرِ بْنِ عَبْدِ اللَّهِ الْمُزَنِيِّ .