Brihat Parashara Hora Shastra
यस्य जन्मनि धीस्थाः स्युः सूर्यार्कीन्दुकुजाभधाः। तस्य त्वाशु जनित्री च भ्राता च निधनं व्रजेत्॥ ५॥
This is true, only when Lagn is not occupied by a benefic. Should Putr Bhava be occupied by Śani, Mangal and Sūrya jointly, (early) death of mother and brother will come to pass.
english translation
yasya janmani dhIsthAH syuH sUryArkIndukujAbhadhAH। tasya tvAzu janitrI ca bhrAtA ca nidhanaM vrajet॥ 5॥
hk transliteration by Sanscript