Shiva Purana
यदा न शंकरस्तुष्टस्ततश्च परिवर्तितम् ॥ आगत्य वृक्षखंडे वै पुनस्तप्तं मया मुने ॥ ३९ ॥
O sage, when Śiva was not pleased, I returned from there to the grove and resumed penance.
english translation
yadA na zaMkarastuSTastatazca parivartitam ॥ Agatya vRkSakhaMDe vai punastaptaM mayA mune ॥ 39 ॥
hk transliteration by Sanscript