Shiva Purana
दूर्वापत्रसमाकारां चतुरंगुलमायताम् ॥ दद्यादाज्याहुतिं पश्चादन्नमक्षप्रमाणतः ॥ ३० ॥
It was about the size of a durva leaf and four fingers long. Afterwards one should offer sacrificial oblations and food in the measure of an axle.
english translation
dUrvApatrasamAkArAM caturaMgulamAyatAm ॥ dadyAdAjyAhutiM pazcAdannamakSapramANataH ॥ 30 ॥
hk transliteration by Sanscript