The Compendium of Caraka 1.27.248

1.27.248

āme soṣṇā kriyā kāryā sā madhvāme virudhyate/
madhvāmaṃ dāruṇaṃ tasmāt sadyo hanyādyathā viṣam//

In undigested conditions a hot treatment must be applied, but that contradicts toxic residue from honey; / therefore, undigested toxic residue from honey is dreadful and kills immediately like poison.