$iblockId = 2;
$arElements = \Bitrix\Iblock\ElementTable::getList([
'select' => ['IBLOCK_ID', 'ID', 'NAME', 'SECTION.NAME'],
'filter' => ['IBLOCK_ID' => $iblockId, 'SECTION.NAME' => 'Мягкая мебель'],
'order' => [],
'runtime' => [
'SECTION' => [
'data_type' => '\Bitrix\Iblock\Section',
'reference' => ['this.IBLOCK_SECTION_ID' => 'ref.ID'],
'join_type' => 'LEFT'
]
]
])->fetchAll();
print_r($arElements);