Then (when their sons are dead) the inhabitants of Vrajabhumi, for whom these boys are the life and soul, will automatically die - SB 10.12.25
Expressions researched:
"I can make Kṛṣṇa and His associates serve as the last offering of sesame and water for the departed souls of my brother and sister"
Srimad-Bhagavatam
SB Canto 10.1 to 10.13
Aghāsura thought: If somehow or other I can make Kṛṣṇa and His associates serve as the last offering of sesame and water for the departed souls of my brother and sister, then the inhabitants of Vrajabhūmi, for whom these boys are the life and soul, will automatically die. If there is no life, there is no need for the body; consequently, when their sons are dead, naturally all the inhabitants of Vraja will die.
Aghāsura thought: If somehow or other I can make Kṛṣṇa and His associates serve as the last offering of sesame and water for the departed souls of my brother and sister, then the inhabitants of Vrajabhūmi, for whom these boys are the life and soul, will automatically die. If there is no life, there is no need for the body; consequently, when their sons are dead, naturally all the inhabitants of Vraja will die.