वृत्रस्य रुधिराच्चैव शिखण्डा: पार्थ जज्ञिरे । द्विजातिभिरभ क्ष्यास्ते दीक्षितैश्व तपोधनै:,कुन्तीनन्दन! वृत्रासुरके रक्तसे बहुतेरे छत्रक उत्पन्न हुए थे, जो ब्राह्मण, क्षत्रिय और वैश्यके लिये तथा यज्ञकी दीक्षा लेनेवालोंके लिये और तपस्वियोंके लिये अभक्षणीय हैं
vṛtrasya rudhirāc caiva śikhaṇḍāḥ pārtha jajñire | dvijātibhir abhakṣyās te dīkṣitaiś ca tapodhanaiḥ ||
Bhīṣma dijo: «Oh Pārtha, de la sangre de Vṛtra surgieron muchos śikhaṇḍa—hongos. Está prohibido comerlos a los dos veces nacidos (brāhmaṇa, kṣatriya y vaiśya), y asimismo a quienes están bajo consagración sacrificial y a los ascetas ricos en austeridad».
भीष्म उवाच
That dharma includes restraint and purity in consumption: certain foods are prohibited especially for the twice-born, for those under sacrificial consecration, and for ascetics, because their vows and ritual states demand heightened discipline.
Bhīṣma explains to Arjuna that mushrooms (śikhaṇḍa) are said to have arisen from the blood of the asura Vṛtra, and on that basis they are classified as unfit for consumption by specific dharma-bound groups.