The Israeli military did not respond to a request for comment on the intended target of the strike that hit the Younes family compound.
Hundreds gathered in Saksakiyeh town centre for Jawad and Ragheb’s funeral.
Women dressed in black robes wailed over the bodies, one of which was draped in Hezbollah’s yellow flag – a reflection of the group’s support in this largely Shia area.
Malak Meslmani, Jawad’s mother, sat beside her son’s body with tears streaming down her face.
“My son is gentle and pure,” she told the BBC.
“He loved the idea of martyrdom, and when he grew up, he wanted to be with the resistance.
“He wanted to resist the enemy Israel who killed him.”
As the funeral procession made its way to the grave site, the sound of Israeli air strikes echoed in the distance. Plumes of smoke rose above nearby hilltops.
The strike on the Younes family home happened shortly after 13:00 (11:00 GMT) on Friday. Jawad’s father, Hussein Younes, said his son had been playing football with his nine cousins at the time.
Standing in front of the ruins of his home, Jawad’s father threw his hands in the air, and shouted: “I don’t know! I don’t know!”, when asked why the Israeli military had targeted the house.
“If this was a military base, no kids would be here,” he told the BBC.
The BBC spoke to multiple members of the family and local council members who all said the family had no involvement with Hezbollah militarily.
Five people survived the attack, and those wounded were taken to a nearby hospital. Among them was Jawad’s aunt, Zeinab.
“Before it happened, me and my husband were inside,” she said, speaking through tears from her hospital bed.
“We didn’t see anything, and we didn’t hear anything… Then I found myself under a pile of rubble.”
Zeinab is being treated for a broken spine and a fractured leg. Doctors say they are hopeful she will walk again, but she is likely to require extensive surgery.
She said there had been no warning ahead of the strike, and that the family would have fled had they been alerted.