Who gave it to Perfected Wei?

Song Yan arrived at the hospital where Tang Zhou was admitted. 

In the hospital, the fifth corridor was blocked by the bodyguards and Song Yan was only allowed to go inside the ward because Chi Jia had already told the bodyguards that she was going to come. 

Seeing the bodyguards lined up, Song Yan knew that there was something very serious going on, she walked past the line of bodyguards and then headed inside the ward. 

Madam Tang with Old Master Tang was sitting inside the ward, she was a sobbing and blabbering mess while Chi Jia's face was paler than the moon. Their reactions were justified as the doctor seemed to have raised his hands earlier, he could not figure out why Tang Zhou suddenly fainted even if all his vitals were in perfect condition.