Does Yi Jue need Feng Jun's talisman? Obviously not, but only such a talisman would allow him to perceive across worlds.
However, Yi Jue raised an eyebrow slightly and spoke with a smile, "You really trust me, don't you?"
After the Golden Core stage, one's gold body becomes flawless; cultivators of this level are extremely careful with information about their essence blood and hair—even during battle, a single strand of hair can't just fall off at random.
Just look at Feng Yishu, who had some hair and fingernails accidentally obtained by Yue Qing, resulting in no hope of forming a Nascent Soul.
Of course, Yi Jue's words were mostly a joke; with their relationship, being on guard for such things would be living too harshly. But it is undeniable that Feng Jun's action also showed great trust in her.
As for a Golden Core giving a Nascent Soul Amulet, there might be a sense of overestimation... that doesn't exist at all, does it?
