حَدَّثَنَا عَبْدُ الرَّزَّاقِ حَدَّثَنَا الثَّوْرِيُّ عَنْ عَلْقَمَةَ بْنِ مَرْثَدٍ نَحْوَهُ بِإِسْنَادِهِ وَلَمْ يَشُكَّ فِي الْخَنَازِيرِ
مسند امام احمد بن حنبل · Hadith 4120
A similar report was narrated from 'Alqamah bin Marthad with his isnad, and there was no uncertainty about the word pigs.
Sanad
حَدَّثَنَا عَبْدُ الرَّزَّاقِ حَدَّثَنَا الثَّوْرِيُّ عَنْ عَلْقَمَةَ بْنِ مَرْثَدٍ