Astanga Hrudaya
सप्ताहः परमः तेषां कालः कालस्य कर्षणे । त्रयस्त्रिंशदपस्तम्भ तलहृत्पार्श्वसन्धयः॥५३॥
seven days is maximum time for these marmas to attract death (death of manifest) Kalantara pranahara marma – vital spots which cause death after some time: Apastambha (2), talahrdaya (4), Parsvasandhi (2),
english translation
saptAhaH paramaH teSAM kAlaH kAlasya karSaNe । trayastriMzadapastambha talahRtpArzvasandhayaH॥53॥
hk transliteration by Sanscript