Brihat Parashara Hora Shastra
निर्याणस्य विचारार्थं कैश्चिछूलदशा स्मृता । लग्नसप्तमतो मृत्युभयोर्यो बलवान् भवेत् ॥ १८१॥
Some sages have designed the Shula Dasha for determining the time of death. In this system the Dasha commences from Dhan, or Randhr, whichever is stronger. If the Rāśi is an odd one, the order of the Dasha Rāśis will be onwards.
english translation
niryANasya vicArArthaM kaizcichUladazA smRtA । lagnasaptamato mRtyubhayoryo balavAn bhavet ॥ 181॥
hk transliteration by Sanscript